I’m struggling to create a basic retitit-ring app that works with wrap-reload — tried a lot of permutations but file changes to "1234" aren’t reflected in a browser refresh. Can you see what’s wrong here?

(ns 
  (:require
   [reitit.ring :as ring]))

(def app
  (ring/ring-handler
   (ring/router
    [["/"
      {:get {:handler
             (constantly {:body "1234"
                          :headers {"Content-Type" "text/html"}
                          :status 200})}}]])
                     (ring/create-default-handler)))

;; separate file

(ns hello.server
  (:require
   [reitit.ring :as ring]
   [ :refer [app]]
   [ring.middleware.reload :refer [wrap-reload]]
   [ring.adapter.jetty :refer [run-jetty]]))

(defn -main [& _args] (run-jetty (ring/routes (wrap-reload #'app)) {:join? false :port 3000}))